Segmented Magnetostrictive patch array transducer, apparatus of diagnosing structural fault having the same and method of operating the same

摘要

is an object of the present invention that can be segmented to generate a high frequency of the shear wave in a structure, such as rods and tubing magnetostrictive transducer array patch, diagnostic apparatus having the same structure and to provide a method of operating the transducer. For this purpose, in the present invention, a plurality of magnetostrictive patch attached to the periphery of the rod member; Each insulator disposed on a magnetostrictive patch; Having a plurality of coil lines extending in the circumferential direction of the rod member on each of the insulator and the coil lines adjacent to each other, the meander coil formed of a current to flow in opposite directions to each other; And each provides a method of operating a segmented magnetostrictive transducer array patch, this structure having a transducer and the diagnostic device including a magnet for forming a magnetic field in the circumferential direction of the rod member to the magnetostrictive patch.